My last post (about 6 hours ago) was about the cosmological principle, but the observed universe is not homogeneous. The observed universe is made up of galactic filaments.
The standard cosmological model, the Lambda CDM model , assumes it is homogeneous.
'Most modern cosmological models are based on the cosmological principle, which states that our observational location in the universe is not unusual or special; on a large-enough scale, the universe looks the same in all directions (isotropy) and from every location (homogeneity).
Perhaps a problem is a reliance by cosmologists on the cosmic microwave radiation maps, or anistropy maps; these have similar random blotches throughout.
The Cobe satellite apparently had a problem as water interferes with microwave measurements.
Below is a talk about CMB and WMAP.
Hit back to go to previous page in history.
Select Cosmology to see other posts and comments to that group.